Hamburger Stroganoff

Hamburger Stroganoff
Ingredients:
1/2 c minced onion
1/2 tsp garlic, powder
1/4 c butter
1 lb ground beef
1 T flour
4 oz can mushrooms
1/2 can cream of celery soup
1/2 c sour cream
Directions:
Cook meat until brown in butter. Add flour and then mushrooms. Cook 5 minutes. Add soup and simmer. Just before serving, stir in sour cream. Serve on egg noodles or rice.